28342381019 has 2 divisors, whose sum is σ = 28342381020. Its totient is φ = 28342381018.

The previous prime is 28342381013. The next prime is 28342381027. The reversal of 28342381019 is 91018324382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28342381019 - 2⁸ = 28342380763 is a prime.

It is a super-2 number, since 2×28342381019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28342381013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14171190509 + 14171190510.

It is an arithmetic number, because the mean of its divisors is an integer number (14171190510).

Almost surely, 2^28342381019 is an apocalyptic number.

28342381019 is a deficient number, since it is larger than the sum of its proper divisors (1).

28342381019 is an equidigital number, since it uses as much as digits as its factorization.

28342381019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 28342381019 in words is "twenty-eight billion, three hundred forty-two million, three hundred eighty-one thousand, nineteen".